X = int(input())

n = 0
if X <= 599:
    n = 8
elif X <= 799:
    n = 7
elif X <= 999:
    n = 6
elif X <= 1199:
    n = 5
elif X <= 1399:
    n = 4
elif X <= 1599:
    n = 3
elif X <= 1799:
    n = 2
elif X <= 1999:
    n = 1

print(n) X = int(input()) X int(input()) int input() input n = 0 n 0 if X <= 599:
    n = 8
elif X <= 799:
    n = 7
elif X <= 999:
    n = 6
elif X <= 1199:
    n = 5
elif X <= 1399:
    n = 4
elif X <= 1599:
    n = 3
elif X <= 1799:
    n = 2
elif X <= 1999:
    n = 1 X <= 599 X 599 n = 8 n 8 elif X <= 799:
    n = 7 X <= 799 X 799 n = 7 n 7 elif X <= 999:
    n = 6 X <= 999 X 999 n = 6 n 6 elif X <= 1199:
    n = 5 X <= 1199 X 1199 n = 5 n 5 elif X <= 1399:
    n = 4 X <= 1399 X 1399 n = 4 n 4 elif X <= 1599:
    n = 3 X <= 1599 X 1599 n = 3 n 3 elif X <= 1799:
    n = 2 X <= 1799 X 1799 n = 2 n 2 elif X <= 1999:
    n = 1 X <= 1999 X 1999 n = 1 n 1 print(n) print n n = 6 6 n n = 7 7 n n = 4 4 n n = 2 2 n n = 1 1 n n = 8 8 n n = 5 5 n n = 3 3 n X = int(input()) int(input()) X n = 0 0 n
X = int(input())

n = 0
if X <= 599:
    n = 8
elif X <= 799:
    n = 7
elif X <= 999:
    n = 6
elif X <= 1199:
    n = 5
elif X <= 1399:
    n = 4
elif X <= 1599:
    n = 3
elif X <= 1799:
    n = 2
elif X <= 1999:
    n = 1

print(n)